Contents of Significant Accounts - Details of Distribution of Employees' Compensation and Directors' Compensation (Detail) - TWD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Analysis of income and expense [abstract] | |||
| Employees' compensation – Cash | $ 3,438,287 | $ 4,509,603 | $ 5,439,059 |
| Directors' compensation | $ 45,000 | $ 45,000 | $ 45,000 |